Magnetic and transport properties of Gd0.9A0.1CoO3−δ (A=Ba, Sr)

Magnetic and transport properties of Gd0.9A0.1CoO3−δ (A=Ba, Sr)

The X-ray diffraction, magnetization and electrical conductivity measurements for Gd0.9A0.1CoO3-delta (A=Ba, Sr) have been made. The complicated magnetic behavior, including the paramagnetic-ferromagnetic-antiferromagnetic and paramagnetic-ferromagnetic transitions, was found for Ba- and Sr-doped sa...

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Veröffentlicht in:Journal of magnetism and magnetic materials 2009-05, Vol.321 (9), p.1266-1271
Hauptverfasser: Kazak, N.V., Ivanova, N.B., Michel, C.R., Ovchinnikov, S.G., Pashkevich, Yu.G., Balaev, A.D., Bondarenko, G.V.
Format: Artikel
Sprache:eng
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Zusammenfassung:The X-ray diffraction, magnetization and electrical conductivity measurements for Gd0.9A0.1CoO3-delta (A=Ba, Sr) have been made. The complicated magnetic behavior, including the paramagnetic-ferromagnetic-antiferromagnetic and paramagnetic-ferromagnetic transitions, was found for Ba- and Sr-doped samples. The gradual insulator-metal transitions were observed in a wide temperature range T=600-800 K. The complex magnetic and transport data could be explained on the basis of the structural phase separation.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2008.11.087